13 Feb
2014
13 Feb
'14
7:51 p.m.
On Thu, Feb 13, 2014 at 4:36 PM, Omari Norman
If there is already something like this out there (or some elegant way to do this that doesn't involve hairy extensions), please let me know and I will be all too happy to deprecate this.
Omari
Hi Omari, You could use: type S3 a b c = (Maybe a, Maybe b, Maybe c) And then prove to yourself that only one entry is Just. This lets you use of classes that work with tuples such as Field1 through Field9 from lens or things from http://hackage.haskell.org/package/tuple. At least that's the strategy in < http://hackage.haskell.org/package/HList-0.3.2.0/docs/Data-HList-Variant.htm...
.
Regards, Adam